[cfe-commits] [Patch] Teach format string analysis that "%zu" means size_t.

Ted Kremenek kremenek at apple.com
Wed Oct 26 20:48:37 PDT 2011

Looks good to me.

On Oct 26, 2011, at 9:07 AM, Hans Wennborg wrote:

> Hi all,
> The attached patch teaches format string analysis that "%zu" means size_t.
> The code had it backwards, thinking size_t was signed, and using that for "%zd".
> Also let the analysis get the types for (u)intmax_t while we are at it.
> Please take a look and let me know if this is ok to land.
> Any ideas for the remaining FIXMEs in PrintfFormatString.cpp, i.e. how
> to get a hold of a type that's the same width as size_t, but signed
> would be appreciated. (And the same for unsigned version of ptrdiff_t,
> though I suppose that is less common.)
> It would also be cool if the warning could say "conversion specifies
> type 'size_t' (a.k.a. 'unsigned long')", rather than just using the
> underlying type, but that's probably for another patch.
> Thanks,
> Hans
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